baber/WOPTO huggingface dataset:
Patent GB-1272933-A (GB)
Title: Pulse control systems for electric motors
Inventor: RIDDING LEWIS SMITH
IPC: H02P7/06
Filed: 1968-07-26
Abstract: 1,272,933. Control of two D.C. motors. CLARK STACATRUC Ltd. 14 July, 1969 [26 July, 1968], No. 35690/68. Heading H2J. To lift a load without moving an industrial truck, switch 27 is closed to connect pump motor 25 to pulse source 10. Depression of pedal 37 adjusts potentiometer 40 to increase the average power of the pulses delivered to the pump motor. When a predetermined power level has been obtained, further movement of the pedal operates switch 36 to energize contactor 22, whereby the pump motor is connected directly to a main battery. To obtain traction only, switches 16-19 are operated to connect motor 13 to the unit 10, the pedal 37 being depressed to increase the power until a by-pass contactor 50 is closed to connect the traction motor directly to the battery. For simultaneous lifting and traction, the motors 13, 25 are connected in parallel across the output of unit 10, which output is increased by depressing the pedal 37. Operation of the footswitch 36 energizes contactor 22 to provide maximum speed of lift, but the by-pass contactor 50 is not energized. Resistor 44 is connected in series with potentiometer 40 to decrease the power output of the unit 10. The resistor 44 may be shunted by a manual switch to provide different rates of travel. The switch 27 is associated with a valve to control fluid supplied to the lifting apparatus, the valve being fully opened before the switch 27 is closed, or the switch being closed as the valve is opening so that the speed of lifting is controlled both by the pulse unit and by the setting of the valve. A switch coupled to a foot brake is adapted to interrupt the pulses from the unit 10. An intermediate lift speed is obtained when the truck is stationary or is coasting by means of resistor 51 in series with potentiometer 40. The resistor 51 is shunted when the pedal 37 is operated.
Patent GB-619339-A (GB)
Title: Improvements relating to ventilation systems
IPC: B60H1/28
Filed: 1946-12-03
Abstract: 619,339. Ventilator operating mechanism. FORD MOTOR CO., Ltd. Dec. 3,1946, No. 35802. Convention date, Dec. 6, 1945. [Class 137] A ventilator operating mechanism comprises a base plate 11 to which is pivoted at spaced points 21, 22 an operating element 12 and a lever 13 for actuating a ventilator cover 28, and the members 11 and 12 have coacting slots 23, 26 respectively and are further connected through a follower 20 joined to the lever 13 and journalled in the area defined by the intersection of the two slots. In the form shown, the follower 20 which is moved by the element 12, is adjustably connected to the lever 13 by a bolt 16 (Fig. 4), and a curved resilient link 14, and a spring 18 on the bolt holds the ventilator in any position. When the ventilator is closed, the follower 20 is moved on into a locking recess 25 of the slot 23 against the resilient action of the link 14. The ventilator is shown in a vehicle body having the ventilation opening covered by a screen 33 and surrounded by a gutter 34. A weather-tight gasket 31 provides a seat for the cover 28. A rod 27 connects the operating mechanism to a lever (not shown) at the other end of the opening. The operating mechanism can be placed in the vehicle body as a completely assembled unit.
Patent GB-1009861-A (GB)
Title: Electro-luminescent display devices
IPC: H05B44/00
Filed: 1961-10-04
Abstract: <PICT:1009861/C4-C5/1> A display device consists of a D.C.-electroluminescent layer 48 upon which are mounted in series-connection a series of PNPN switches 52 which can be individually switched from a dark high-impedance state to a low impedance state in which light is emitted by the associated part of layer 48.  As shown, the switches comprise a top electrode 54, an N-layer 68 common to a row of switches, separated P, N and P layers 70, 72, 74 with a separate switching electrode 50 for each layer 70, and aluminium bottom electrodes (which may be omitted). Layer 48 has a tin-oxide base electrode 46 on the glass substrate 44.  There are a number of rows of switches, the leads 62 to the electrodes 50 passing up between them and the empty spaces being filled with epoxy resin. Electrical actuation by electrodes 50 may be replaced by actuation by radiation or by cathode rays.  The formation of the electroluminescent layer is described in detail.  Zinc sulphide is evaporated on to the layer 46. Activators manganese (2%), copper (0.2%) and chlorine (2%) may be evaporated at the same time or incorporated later by firing the layer in argon at 770 DEG C. in contact with a further layer of already activated phosphor.  The activated layer is boiled in a solution of sodium hydroxide and sodium cyanide and the aluminium top electrode evaporated thereon. Specifications 829,255 and 858,393 are referred
Patent GB-1125200-A (GB)
Title: Improvements in or relating to the securing of struts between mine arches
Inventor: HOBSON GEORGE CLARENCE
IPC: E21D11/28
Filed: 1967-08-04
Abstract: 1,125,200. Securing struts to mine arches; clamps. HAYDEN NILOS Ltd. 4 Aug., 1967, No. 35808/67. Headings E1E and E2B. A clamp 3 for securing slotted struts 2A, 2B to a flanged mine arch 1 consists of a U- shaped member having a netch to embrace one flange 5B and aligned slots 7 in the limbs 6A, 6B to receive an attachment wedge 8A, 8B, the clamps being made of a single thickness of plate or from a channel section as shown.
Patent GB-354141-A (GB)
Title: Improvements in or relating to electric gas- or vapour-filled arc discharge tubes
IPC: H01J61/04
Filed: 1930-11-28
Abstract: 354,141. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Nov. 28, 1930, No. 35873. Convention date, Jan. 9. [Class 39 (i).] In a gas- or vapour-filled arc discharge tube for the emission of rays, for example ultra-violet rays, provided with an incandescent cathode 3 and one or more anodes 4, the deposition upon the wall of the tube of particles disintegrated from the cathode is prevented by providing a grid-shaped member which, without surrounding the path of discharge, is disposed laterally thereof and is preferably connected t the cathode3. Thegrid-shaped member may consist of a wire 6 wound upon a frame 5 supported by a wire 7 connected to one of the leading-in wires 8 of the cathode, or may consist of a piece of gauze. The anodes 4 may consist of nickel plates, and the incandescent cathode 3 of a tungsten helix coated with an electron-emitting substance. In the example the tube 1 contains a few drops of liquid mercury and a gas, preferably a rare gas such as argon.
Patent GB-155782-A (GB)
Title: Process for producing fatty acids of high purity and melting point
IPC: C11C1/08
Filed: 1920-12-23
Abstract: Fatty acids for making soap, candles &c. are prepared and purified by hydrogenating, in presence of a catalyst such as nickel, oil or fats such as corn, cotton seed, coconut, fish or whale oil, tallow, grease &c. until the oil has a melting-point of 60-62 DEG  C. and an iodine number of 0 - 2, splitting the hydrogenated oil by the Twitchell or other process, dissolving the fatty acids obtained in a heated solvent such as denatured alcohol or gasolene, and separating the fatty acids by cooling.  The fatty acids are pressed to remove residual solution which carries away hydrocarbons and colouring matters formed during the hydrogenation.
Patent GB-393346-A (GB)
Title: Improvements in or relating to, chain, cable, belt or like gearing for effecting intermittent drive of a machine part
IPC: F16H7/00
Filed: 1931-12-31
Abstract: 393,346. Belt, chain, &c. gearing. SOUTHERN, J. H., 41, Newcomen Terrace, Redcar, Yorkshire. Dec. 31, 1931, No. 36091. [Class 80 (i).] An intermittent drive is imparted to a wheel b from a constantly-rotating wheel b<1> by an endless chain, cable, belt, or the like c, the lengths of the tight and slack sides of which are cyclically varied by means of wheels e,. e<1> which engage the opposite runs of the chain &c. and which are mounted on a transverse sliding frame h which is caused to reciprocate by a lever i operated by complementary cams n, o. The chain &c. also engages fixed jockey wheels p, p<1>, q and a counterweighted jockey wheel q<1>. The cams are so designed that the drive is taken up gradually after being arrested.
Patent GB-303442-A (GB)
Title: Improvements in internal combustion engines of the sleeve-valve type
IPC: F01L5/10
Filed: 1928-12-07
Abstract: 303,442. British Continental Motors, Ltd., (Assignees of Meyer, A. J.). Jan. 3, 1928, [Convention date]. Cylinders, ports of.-In order to increase the area of port opening obtained by sleeve valves having a combined oscillating and reciprocating motion, the opposite ends of the closing-edge 30 of each sleeve inlet port 17 are spaced apart along the sleeve axis, for example by making these edges inclined as indicated; or the edge may consist of two horizontal stepped portions. The closing-edges 31 of the cylinder inlet ports 16 are similarly shaped, and the same applies to the opening-edges 44 of the sleeve and cylinder exhaust ports. The lower end of the port edge is defined by the point in the crank-pin circle at which inlet-closing or exhaust-opening is desired to occur, and the upper end by the minimum amount of sealing required for the sleeve ports when firing occurs, which may be equal to the distance between the bottom of the cylinder head and the top of the sealing-ring provided thereon. The inlet-opening edges 36, 37 and exhaust-closing edges may be inclined as shown at 40 in Fig. 3 and described in Specification 18140/09. The corners of the ports may be rounded as at 27a according to the size of the rotary cutter employed, or may be sharp if the ports are punched. Fig. 3 shows a development of the ports, the cylinder inlet ports 42 and exhaust ports 10<a> being shaded, and one of the sleeve ports 43 serving both for inlet and exhaust.
Patent GB-1000424-A (GB)
Title: Stabilization of organic material and stabilizer compounds therefore
IPC: C11B5/00
Filed: 1963-09-16
Abstract: Fats and oils of animal or vegetable origin, waxes, fuels, lubricants including aliphatic esters, e.g. dihexyl azelate, esters of alkanoic acids, e.g. trimethylolpropane tripelargonate and diisoamyl adipate, and mineral oils are stabilized against oxidative deterioration by the inclusion therein of a compound of formula <FORM:1000424/C4-C5/1> wherein R1 is an alkyl group, R2 is hydrogen or an alkyl group having 1 to 8 carbon atoms and R3 is an alkyl group, an alkylthioalkyl group having 2 to 24 carbon atoms or a radical of the formula <FORM:1000424/C4-C5/2> wherein R1 and R2 have the meanings just assigned, n is 0 or 1 and A is an alkylene, alkylenethioalkylene or phenylene group.  Additional stabilizers, e.g. di - lauryl - b  - thio - di - propionate and similar diesters may be employed in addition. Fats and fatty oils mentioned include linseed oil, menhaden oil, cod liver oil, castor oil, olive oil, rapeseed oil, coconut oil, palm oil, corn oil, sesame oil, peanut oil, cottonseed oil, butter, fat, lard and beef tallow.ALSO:Polymeric material, e.g. polyethylene, polypropylene, high impact polystyrene and acrylonitrile - butadiene - styrene copolymers are stabilized by the incorporation therein of a compound of formula <FORM:1000424/C3/1> wherein R1 is an alkyl group, R2 is hydrogen or an alkyl group having 1 to 8 carbon atoms and R3 is an alkyl group, an alkylthio-alkyl group having 2 to 24 carbon atoms or a radical of the formula <FORM:1000424/C3/2> wherein R1 and R2 have the meanings just assigned, n is 0 or 1 and A is an alkylene, alkylenethioalkylene or phenylene group.  The compositions may contain as an additional stabilizer dilauryl-b -thiodipropionate.ALSO:The invention comprises compounds of the formula <FORM:1000424/C2/1> wherein R1 is an alkyl group, R2 is hydrogen or an alkyl group having 1 to 8 carbon atoms and R3 is an alkylthioalkyl group having 2 to 24 carbon atoms or a radical of the formula <FORM:1000424/C2/2> wherein R1 and R2 have the meanings just assigned, n is 0 or 1 and A is an alkylene, alkylenethioalkylene or phenylene group.  The compounds may be made by reacting the appropriate acid, anhydride or acyl chloride with the appropriate hydroquinone preferably in solution in an inert solvent such as benzene. When the acyl chloride is used, pyridine is preferably present to remove the hydrogen chloride formed.  Intermediates.-b  - (n - Octadecylmercapto) propionic acid is prepared by hydrolysing the ester prepared from 1-octodecanethiol and methyl acrylate in the presence of benzyltrimethylammonium methoxide.  The acid is converted to the acyl chloride using thionyl chloride.  b  - (3,5 - Di - t - butyl - 4 - hydroxyphenyl) propionyl chloride is prepared from the corresponding acid using thionyl chloride.
Patent GB-923439-A (GB)
Title: Improvements relating to "carlton" couplers for mine cars and the like
Inventor: BUMBY JOHN
IPC: B61G1/04
Filed: 1960-10-22
Abstract: 923,439. Vehicle couplings. ROBERT HUDSON Ltd. Oct. 2, 1961 [Oct. 22, 1960], No. 36310/60. Class 103(5). A link 1 of a Carlton coupler may be raised or lowered by pivoting an operating lever 8 which is connected to the link by a cylinder 7 containing a spring, and an arm 6. A rockable rod 12 pivotally connected to the lever 8 at 11 and surrounded by a spring 13 provides an overcentre device and in extreme positions engages abutments 8a 8b on the lever. In another embodiment (not shown) the arm 6 may be pivoted about the pivotal axis of the link 1 and engage beneath the link, the cylinder 7 being replaced by a chain coupled through a tension coil spring to the crank of an operating rod, which crank may pass over a dead centre position against the spring tension.
Patent GB-1402023-A (GB)
Title: Driving mechanism for a printer
IPC: B41J7/48
Filed: 1972-08-03
Abstract: 1402023 Ratchet mechanism SEIKOSHA KK 3 Aug 1972 [5 Aug 1971 17 Aug 1971] 36361/72 Heading F2Q [Also in Division B6] A print drum 1a is rotated stepwise by ratchet-and-pawl mechanism comprising a ratchet wheel 43, two pawls 54, 55 urged into engagement with different teeth of the ratchet wheel by respective springs 56, 57, the pawls being pivotally mounted on a pivotable plate 49, and alternately energized electromagnets 47, 48 which pivot the plate 49. A detent pawl 62 holds the ratchet wheel after each rotational step. Pins 59, 60 guide the pawls 54, 55 and limit the extent of movement thereof.
Patent GB-156102-A (GB)
Title: Breathing apparatus
IPC: A62B7/08
Filed: 1920-12-29
Abstract: 156,102. Heide, R. von der. Dec. 27, 1919, [Convention date]. Respirators. -- A respiratory appliance for personal use, in which the movements of the wall of the breathing bag itself reduce or regulate the pressure of the nutritive gas, rendering unnecessary a separate pressure-reducing or regulating valve, comprises a breathing bag a, Fig. 1, with short air-entry and exit pipes band c and a pipe o connected to a supply of nutritive gas. The nozzle e of the pipe o is adapted to be closed by the member f which is attached to the arm g of a lever which is pivoted at h, and of which the longer arm i extends into the interior of the breathing bag. As the pressure in the bag a falls, the wall m collapses and lessens the tension of the spring k, so that the lever moves and the nozzle e opens until sufficient gas has been introduced to raise the wall m again and to tension the spring k. An alternative construction comprises a breathing bag a, Fig. 2, constructed in the form of a cylindrical belows, the wall m of which acts on the closing member f against the action of the spring s through the straight rod p.
Patent GB-909809-A (GB)
Title: Improvements relating to the charging of horizontal coke oven batteries
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B31/04
Filed: 1959-10-27
Abstract: 909,809. Charging coke-ovens; operating coke-oven charging lids. WOODALL-DUCKHAM CONSTRUCTION CO. Ltd. Oct. 19, 1960 [Oct. 27, 1959], No. 36424/59. Classes 51(2) and 55(1). In order to prevent the discharge of smoke and gas during charging of a coke oven with four charging holes 1-4 and gas ascension pipes 6 leading to mains 7, charging car hoppers 12, 13, 14 and 15 have capacities so proportioned that on charging first the outer hoppers 12 and 15, then hopper 13, and finally hopper 14, a free gas space is left above mounds 18, 19 and 20, and mound 21 contains sufficient coal to fill the gaps between the mounds when leveller bar 16 is used. An existing installation may be adapted by extending hoppers 12 and 15 and fitting hoppers 13 and 14 with sleeves 22 and 23 respectively, hopper 13 being also fitted with a baffle 24. The hoppers have vibrators 55, and hopper 14 has a telescopic trunk 38, 39 lowered by an hydraulic jack 42, Fig. 2, through levers 43, 44 and 45 with a counterweight 48. Arcuate gates 49, 50, Fig. 2, are operated by hydraulic jack 53 through lever 52 and a limit switch 54 prevents travel of the car when gates 49, 50 are open. During discharge of hopper 14, charging holes 1, 2 and 4 are closed by lids 5 each operated by mechanism comprising a vertical shaft 26, Fig. 4, carrying a radial arm 27 engaging the lid stud 29 and raised and lowered by a counterweighted lever 33 actuated by an hydraulic jack 35, said shaft being also rotated by an hydraulic jack 31. In a modification, Figs. 6-8 (not shown), having a single gas collecting main at the pusher end of the oven hoppers 12, 14 and 15 have telescopic trunks. The trunks on hoppers 12 and 15 have upper annular chambers connected by a duct, whereby smoke and gases from charging hole 4 may be led back into the oven through charging hole 1 and retracted by an ascension pipe leading to said main. A sleeve is fitted round the leveller bar door opening in order to minimize leakage as in Specification 521,909. Specification 909,807 and U.S.A. Specifications 1,900,752 and 1,900,753 also are referred to.
Patent GB-1155039-A (GB)
Title: Dehydroestrones and their preparation
IPC: C07J1/00
Filed: 1966-08-15
Abstract: 1,155,039. Dehydro-estrones. MERCK & CO. Inc. 15 Aug., 1966 [18 Aug., 1965], No. 36438/66. Headings C2C and C2U. A 1,2,3,4,7,8 - hexahydro - 6 - (C 1-5  alkoxy)- naphthalen - 1 - one or a 6 - (C 1-5  alkoxy) - 1- tetralone is reacted with crotyl-triphenyl phosphonium bromide or chloride to give a 1,2,3,4,7, 8 - hexahydro - 6 - (C 1-5  alkoxy) - 1 - (2 - butylidene) - naphthalene or 1,2,3,4 - tetrahydro - 6- (C 1-5  alkoxy) - 1 - (2 - butylidene) - naphthalene, these are reacted with succinic anhydride or a succinyl halide in the presence of a Lewis acid to give dl-8,14-bis-dehydro-estrone or the novel dl-8, 11, 14-tridehydro-estrone, respectively, and these, if desired, are hydrogenated to give dl-8- dehydro-estrone, which may be converted to dl-estrone by a known procedure, e.g. isomerization to dl-9(11)-dehydro-estrone and catalytic hydrogenation of this. 1,2,3,4,7,8 - Hexahydro - 6 - (C 1-5  alkoxy)- naphthalen-1-ones are prepared by stirring solutions of 1,2,3,4,5,8-hexahydro-6-(C 1-5  alkoxy)-naphthalen-1-ones in methanol containing a strong base.
Patent GB-364559-A (GB)
Abstract: 364,559. Colour photography. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Aug. 6, 1930, No. 23588. Convention date, Aug. 6, 1929. Addition to 356,701. [Class 97 (i).] To print lenticular screen positives which may. be used with projection lenses of great focal length from lenticular screen negatives taken with lenses of short focal length, the process of the parent Specification is modified in that the objective projecting an image of the negative on to the positive is displaced from the plane conjugate with respect to the optical projection system to the plane corresponding to the position of the colour filter when the negative was taken. A real or virtual image of the filter plane may thus be produced in a predetermined position in relation to the positive different from the position of the filter in relation to the negative in the original exposure. In the example shown in the Figure, the objective L4 and positive P are moved away from the objective L3 until the filter image plane F2 is at the focus of the objective L4. The virtual image of F2 is, when viewed from the positive P, at infinity and the positive film so produced may be used with any projection lens provided that the colour filter is placed in the front focal plane of the projecting lens. Displacement of the objective L4 towards the objective L3 causes a real image of the plane F2 to be formed nearer to the positive P.
Patent GB-307875-A (GB)
Title: Improvements in or relating to miners' electric lamps
IPC: F21L4/00
Filed: 1928-12-10
Abstract: 307,875. Musy, E. March 15. 1928, [Convention date]. Battery !amps. - The projecting glass of a miner's lamp of the kind in which the lighting current is interrupted on breakage of the glass is subjected to lateral pressure by means of wedges in order to effect a com. plete fracture in the event of it cracking. As shown, metallic cones 2, 3 carrying rubber packings c<=>, c<3> and serving respectively as a reflector and a lampholder are forced against the bevelled ends of the glass 1. Pressure is obtained by tightening the whole against the cap 5 by means of a threaded ring 6 which presses against the cone 3 through a, spring 7. A packing ring 18 determines the position of the ring 6 which carries a terminal 8 insulated by a ring 9. Contacts 10, 12 are carried by the terminal 8, the former being positioned at its base and adapted to make contact with an accumulator terminal 11 and the latter rO'!'Illing a lamp contact and carrying a springy cap-shaped brass base 20 which presses on a spring 13 ; the edges of the base 20 press against the internal threads 19 of the terminal 8 in such a manner that the terminal 12 has a restricted upward motion. Interruption of the current which takes place at P in a closed chamber sealed by a rubber ring 17 is effected. on fracture, by the displacement of the cone 3 through the action of the released spring 7. The cone 2 is adapted to rock about the ball joint 16 thereby facilitating the displacement of portions of the broken glass.
Patent GB-334456-A (GB)
Title: Improvements relating to the ventilation of dynamo-electric machines
IPC: H02K9/06
Filed: 1929-11-28
Abstract: 334,456. Associated Electrical Industries, Ltd., (Assignees of Ross, M. D.). Dec. 7, 1928, [Convention date]. Dynamos and motors, cooling.-In a dynamo - electric machine, and especially a large turbo-alternator, which is ventilated by means of a double entry fan on the shaft somewhat removed from the rotor body, provision is made for admitting air to both sides of the fan and conducting the effluent air into an annular chamber adjoining the end of the rotor and communicating with the air gap and ventilation ducts of the machine, a stationary diffuser being arranged to surround the fan, this diffuser having hollow blades through which admission air to the fan is supplied from the side of the fan remote from the rotor body to the side of the fan adjoining the rotor body. Fig. 1 shows the application to a machine in which air enters through a base opening 15 within an end bell 16. The double fan 8 has an air entry on each side and is surrounded by a stationary diffuser 10, -shown separately in Fig. 2, which is attached to the stator frame by an annular plate 12 and to the outer periphery of a depending inner wall 13. Part of the air from the inlet 15 enters the fan axially from the outer side, as shown by the arrow 17, and part passes to the inner side of the fan through the hollow blades 11 of the diffuser and the chamber 18 which is bounded by the inner wall 13. The air on leaving the fan is thrown into the diffuser spaces 21 between the blades where it expands prior to emergence with a reduced velocity. A portion of the air may be bye-passed directly into the rotor through openings 19 in the rotor end without going through the fan, this action being produced by centrifugal action in the rotor ducts.